Inventor

SHOJI HIROYUKI

JP51 patents

⚠️ This page may combine multiple inventors who share the name “SHOJI HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHOJI HIROYUKI

HITACHI LTD

Inverter type illumination lighting apparatus

Device for turning on light and illumination apparatus

Resonance type power converter unit, lighting apparatus for illumination using the same and method for control of the converter unit and lighting apparatus

Bi-directional DC-DC converter and control method

Isolated bidirectional DC-DC converter

Soft switching DC-DC converter including a buck converter and a boost converter sharing a common transformer

Lighting device for illumination and lamp provided with the same

Bi-directional DC-DC converter and control method

Unidirectional DC-DC converter

Device for turning on light and illumination apparatus

Lighting device for illumination and lamp provided with the same

SHARP KK

Molding die and marking method for semiconductor devices

Optical semiconductor device, method for fabricating the same, lead frame and electronic equipment

Optical semiconductor device, optical communication device, and electronic equipment

Photocoupler, method for producing the same, and electronic device equipped with the photocoupler

Photo-coupler semiconductor device and production method therefor

Method of manufacturing a lead frame

HITACHI COMP PERIPHERALS CO

Bi-directional DC-DC converter and method for controlling the same

Bi-directional DC-DC converter and method for controlling the same

Bidirectional DC-DC converter and power supply apparatus with the same

Bidirectional dc-dc converter and control method thereof

PWM signal generating circuit and power supply apparatus comprising such PWM signal generating circuit

SHIMADA TAKAE

Bidirectional DC-DC converter and control method thereof

Bi-directional DC-DC converter and method for controlling the same

Complex inductor and power supply unit

Power supply apparatus

MARUYAMA YASUHIRO

LED drive circuit, LED illumination component, LED illumination device, and LED illumination system

LED drive circuit

LED drive circuit, LED illumination component, LED illumination device, and LED illumination system

HITACHI AUTOMOTIVE SYSTEMS LTD

Charging apparatus

Power supply apparatus

Power source device

URUNO JUNPEI

Buck-boost DC-DC converter with auxiliary inductors for zero current switching

Gate drive circuit of the voltage drive type semiconductor element and power converter

MITSUBISHI ELECTRIC CORP

Communication system

Communication system, base station and communication terminal device

NEC ELECTRONICS CORP

Resin-molded package with cavity structure

Lead frame and manufacturing method thereof, and semiconductor apparatus and manufacturing method thereof

HITACHI POWER SEMICONDUCTOR DEVICE LTD

Rectifier circuit and power supply using same

Rectifier circuit and power supply using the same

KYOCERA CORP

Radio communications system, base station apparatus and method of transmission power control

RENESAS TECH CORP

Semiconductor device and memory card using same

SASE TAKASHI

Power converter, control method of power converter, and hard disk drive

HITACHI INFORMATION & TELECOMMUNICATION ENG LTD

DC-DC converter, secondary battery charge and discharge system, and method of controlling DC-DC converter

OKUBO TOSHIKAZU

DC-DC converter

NEC COMPOUND SEMICONDUCTOR

Resin-molded package with cavity structure

WHITAKER CORP

Optical connector having optical fiber protection member

KANAMORI ATSUSHI

LED driver circuit and LED lighting device using the same

HITACHI INDUSTRIAL PRODUCTS LTD

Power conversion device

SHOJI HIROYUKI

Semiconductor package having main stamp and sub-stamp